EP 0909957 B1 20050608 - Measuring signals in a tester system
Title (en)
Measuring signals in a tester system
Title (de)
Messsignale in einem Testsystem
Title (fr)
Signaux de mesure dans un système de test
Publication
Application
Priority
US 94974797 A 19971014
Abstract (en)
[origin: EP0909957A2] Apparatus and method for measuring the time interval between a first event and a second event in a tester system. First and second time measurement circuits independently receive respective first and second events. The time measurement circuits each includes a coarse counter clocked by the master clock. The first coarse counter is activated by an initial event, and the first coarse counter stops counting upon activation of the first event. The second coarse counter is also activated by the initial event, and the second coarse counter stops counting upon activation of the second event. A first fine counter clocked by the master clock produces a count value representing the time interval between the first event and a first leading edge of the master clock. A second fine counter clocked by the master clock produces a count value representing the time interval between the second event and a second leading edge of the master clock. <IMAGE>
IPC 1-7
IPC 8 full level
G01R 31/28 (2006.01); G01R 31/319 (2006.01); G01R 31/3193 (2006.01)
CPC (source: EP KR US)
G01R 31/31922 (2013.01 - EP US); G01R 31/31937 (2013.01 - EP US); G06F 11/22 (2013.01 - KR)
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
EP 0909957 A2 19990421; EP 0909957 A3 19990714; EP 0909957 B1 20050608; DE 69830453 D1 20050714; JP H11190766 A 19990713; KR 19990037034 A 19990525; TW 460770 B 20011021; US 6081484 A 20000627; US 6285963 B1 20010904
DOCDB simple family (application)
EP 98402555 A 19981014; DE 69830453 T 19981014; JP 29230398 A 19981014; KR 19980042657 A 19981013; TW 87116966 A 19981013; US 45205899 A 19991130; US 94974797 A 19971014